Mortise-lock



IVI. J. POPOVICH.

IVIOHTISE LOCK.

APPLICATION FILED MAY 7, I`9I8.

1,335,027. www@ Mar. 30,1920.

lill

and has for its ttpecication oi Letters Patent.

Patented rial. au, laan.,

.application tiled May 7, 191B. Serial Ito. 233,053.5.

11b all wiwi/i may concern:

lille it lrnown that il, ll/lrcnani.. J. ll'orovicri, subject of the liing of flerbia, residing at lillast Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and 4useful llinprovements in ll/llortisedlioelrs, of 1which the following is a specification.

lhis invention relates to a mortise loch object toprovide a loch of such class in a manner as hereinafter set forth, with a loclrbolt having a vertical and longitudinal movement when shifted to and from loclring position, and said locking bolt having means associated with the locking pin arranged Within the keeper forming a part of the loclr to prevent the locking bolt from being surreptitiously shifted to open ne er.`

locking. pin associated with 1F urther objects of the invention are to provide a rnortise loch which is simple in its construction and arrangement, strong, durable, thoroughly eflicient in its use, conveniently operated and'coinparatively inexpenf sive to set up. p

lll? ith the foregoing and other objects in vievv this invention consists of the novel construction, combination and arrangement of parts as hereinafter more specihcally described and illustrated in the accompanying drawings, wherein is found an embodiment of the invention, but it is to be understood that changes, variations and Inodica-tions can be resorted to-vvhich come Within the scope of the claims hereunto appended.

1n the drawings wherein lilre reference characters denote corresponding parts throughout the several views: Y

Figure 1 is an elevation showing the elements of the loch in full lines in closed position and in dotted lines in open position.

llig. 2 is an f elevation of the actuating mechanism for the locking bolt.

lhig. 3 is a sectional detail illustrating the a locking bolt.

Referring to the drawings. in detail 1 denotes a locking bolt, which is substantially oblong` in contour, and has its forward end reduced to provide a nose 2, and a recess 3.

Suitably arranged Within the lock casing 1a, above the locking bolt 1, are roller bearings d, against which the locking bolt 1,

rides as'it'is shifted to and from locking position. Roller bearings 4,`also arrest upvvard movement of the locking bolt 1.

dissociated with the loclring bolt 1, is an actuating mechanism therefor the purpose of which is to elevate said bolt 1, and further to shift the same longitudinally to locking position. 'lhe said actuating mechanism consists of a. toothed sector o, pivotally mounted as at (i, and provided With an arm 7. The arm has a slotted entension 8, into which extends a pin 9.

The said actuating mechanism further includes a link 10, which is pivotally connected as at 11, tothe arm 7, and also pivotally connected as at 12, to a lever 13, the

latter is pivotally connected 'as at 1a, to the curved intermediate portion 15, of a shifting arm 16. The ends of the arm 16, are connected as at 17, to the locking bolt 1.

The extension 8 is arranged over the lever 13, and is slotted, y pin 9 extends into the slot thereof. rlhe pin 9 is carried by the lever 13.

The said actuating mechanism further inw cludes a supporting bar 12, having pivotallyY conected to each end as at 19, a linh 20, and

the said linlrs 20, are pivotal'ly connected through the medium of the pivot 17, with the locking bolt 1. The supporting bar 18, is secured in the lock casing 1a, provided for the locking bolt 1 and associated elements, in any suitable manner.

The reference character 21, denotes a keeper casing and which is formed with a slot 22, to permit of the passage of the forvvard end of the loc-king bolt into and out of the said casing 21. Arranged Within the casing 21, are. rods 23, which carry a shiftable locking pin 24, the latter is controlled by a pair of springs which are mounted onthe rods 23, and interposed between the rear Wall of the casing 21, and the locliing pin 2K1.

When the locking bolt 1, is in engage ment with the pin 24, the springs 25, mainw tain the pin 24, against the Wall 2G of the recess 3.

` For the bolt 1, to inoperative position when the lat` ter is shifted clear of the locking pin 24 a spring 27 is employed which has one end secured to the lock casing and the other end to the rear end of the locking bolt 1. The said spring 27, not only acts as a means to restore the locking bolt to norma] or inoperative position when said bolt is shifted clear of the locking pin 24, but when the. locking bolt isV in engagement purpose of restoring the locking and as before stated the llt) with the pin 24 said spring acts as a means to maintain the nose 2, against the pin 24.

Owing to the providing of the locking bolt 1, with a recess 3, and nose 2, and'asso- ,ciating therewith the 'locking pin 24, it is obvious that it prevents the prying apart of the door and jamb.

The reference character 28 denotes akey, the ward 29 thereof bein shown in engagement with one of the teet 30, of the toothed sector 5.

When the key 28 is turned in the direction to move the loc-kin bolt to locking engagement the sector 5 is shifted on its pivot in the direction indicated by the arrow, Fig. 1. This first causes an elevation of the locking bolt 1, after which the locking bolt is moved forwardly in a longitudinal direction until the nose clears the pin 241, when the bolt 1, will move downwardly and the pin 24 engage in the recess 3.

If the sector 5, is shifted in the direction of the arrow shown in Fig. 2, the arm 7, will vals engage the lever 13, elevate the bolt l and after the nose 2, clears the pin '24, the spring 27, will restore the locking bolt to normal or inoperative position.

Vhat I claim is:

1. In a lock the combination with a spring controlled locking pin, of a locking bolt provided with a .recess adapted to receive said pin to lock said bolt, a shifting arm pivotally connected to said bolt, and means connected with said shifting armfor elevating the arm and bolt and for further causing said shifting arm to move the bolt in a longitudinal direction to engage said pin.

2. In a lock the combination with a spring controlled locking pin, of a locking bolt provided with a recess adapted to receive said pin to lock said bolt, a shifting arm ,piv-

.otally connected to said bolt, and means`connected with said shifting arm for elevating thearm and bolt and for further causing said shifting arm to move the bolt in a longitudinal direction to engage said pin and means for arresting longitudin-al shifting movement of the bolt in either direction.

3. In a lock the combination with a spring controlled locking pin, of a locking bolt pro-- vided with a recess adapted to receive said pin to lock said bolt, a shifting arm pivotally connected -to said bolt, and means connected with said shifting arm for elevating the arm and bolt and for further causing saidy shifting arm to move the bolt in a longitudinal direction to engage said pin, and roller bearings for limiting the upward movement of the bolt and -against which said bolt rides when shifted longitudinally to locking position.

4. In a lock the combination with a spring nected with said shiftin controlled locking pin, of a locking bolt provided with a recess adapted to receive said pin tolock said bolt, a shifting arm pivotally connected to said bolt, and means conarm for elevating the arm and bolt and or further causing said shifting arm to move the bolt in a longitudinal direction to en age said in, and a spring having one end connecte to said bolt and its other' end anchored.

5. In a lock the combination with a spring controlled locking pin, of a locking bolt provided with a recess adaptedto receive said pin to lock said bolt, a shifting arm pivotally connected to said bolt, and means connected with said shifting arm for elevating the arm and bolt and for further causing said shifting arm to move the bolt in a longitudinal direction to engage said pin, and means for arresting longitudinal shifting movement of the bolt in either direction, and a spring having one end connected to said bolt and its other end anchored.

6. In a lock the combination with a spring controlled locking pin, of a locking bolt provided with a recess adapted to receive said pin to lock said bolt, a shifting arm pivotally connected to said bolt, and means connected with said shifting arm for elevating the arm and bolt and for further causing said shifting arm to move the bolt in a longitudinal direction to engage said pin, and roller bearings for limiting the upward movement of the bolt and against which said bolt rides when shifted longitudinally to `locking position and a spring having onew end connected t0 said bolt and its other end anchored.

7. In a lock the combination with a spring controlled locking pin, of a locking bolt provided with a recess adapted to receive said pin to lock said bolt, a shifting' arm piv.- otally connected to said bolt, and means connected with said shifting arm for elevating the arm and bolt and for vfurther causing said shifting arm to move the bolt in a longitudinal direction -to engage said pin, and means for arresting longitudinal` shifting movement of the bolt in either direction, and roller bearings for limiting the upward movement of the bolt and against which said bolt rides when shifted longitudinally to lockingposition, and a spring having one end connected to said bolt and its other end anchored.

In testimonv whereof I aiiix my signature in the presence of two witnesses.

MICHAEL J. POPOV-ICH 

